Improvement in try-squares



J. WILLIAMS.

Try Square.

No. 49,670. f Patented Aug.. 29, 1865.

'm x \m .o we E ce @i Qi' Q) wh/anse.; zven'or UNITED STATES PATENT OFFICE.

JOHN WILLIAMS, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN TRY-SQUARES.

Specitication forming part of Letters Patent No. 49.6 70, dated August 29, l865.

To all lwhom it may concern: To enable others to make and use my inven- Be it known that I, JOHN VVTLLIAMS, of tion, Iproceed to deseribeits construction and Worcester, in the county of Vorcestcr and operation.

State ot Massachusetts, have invented a new The beam A consists of eight parts, as foland Improved Mode of Constructing and AdloWs-viZ., The nut, marked ,thetwo screws, justing Try-Squares; and I do hereby declare marked b and c, the wood part, marked d, the that thc following is a full and` exact descripstrap of metal on the outer edge, marked c, the tion thereof', reference being had to the ac strap of metal on the inner edge, marked f, the companying drawings, and to the letters of metal rod, marked g, and the prolongation ot' reference marked thereon. a metal part of the beam, marked h.

Figure No. 1 is a perspective view of the Instead of being partly of Wood, the parts whole try-square. Fig. No. 2 is a perspective marked d, @,f, and h may be ot' one piece ot' view ot' a section ofthe try-square, sliowingits metal, the other parts remaining as above de. internal construction and operation. scribed.

The nature ot' my invention consists in pro- The tongue B is made of steel, having in it viding a metal rod which passes through the a notch to receivetheprolongation h,which asbeam lengtlnvise, and is attached at one end sists to lock it securely to beam A. by a screw to the tongue, and at the end of What I claim as my invention, and desire the rod opposite that which is thus attached to secure by Letters Patent, isto the tongue are a screw and nut, by means The mode ot attaching the tongue B to the ot' which the edge ofthe tongue, resting in the beam A by means of the rod g and nut a, ar-

groove made for it in the beam,is drawn down ranged and combined in the manner set forth.

from the bottom of the groove and upon the JOHN WILLIAMS. prolongation ot' a part of the beam, and is Witnesses: firmly secured and properly adjusted to the HARTLEY VILLIAMS,

beam. THEoDoEE S. J oHNsoN. 

